Error return error message that is extended code.

Exec execute the statement with arguments. Return result object.

ExecContext implement ExecerContext.

GetFilename returns the absolute path to the file containing the requested schema. When passed an empty string, it will instead use the database's def

Next move cursor to next. Attempts to honor context timeout from QueryContext call.

PrepareContext implement ConnPrepareContext.

Query the statement with arguments. Return records.

QueryContext implement QueryerContext.

RegisterPreUpdateHook sets the pre-update hook for a connection. The callback is passed a SQLitePreUpdateData struct with the data for the update, as

ResultZeroblob sets the result of an SQL function. See: sqlite3_result_zeroblob, http://sqlite.org/c3ref/result_blob.html

Step to backs up for one step. Calls the underlying `sqlite3_backup_step` function. This function returns a boolean indicating if the backup is done

Test the error reporting when preparing to perform a backup.

TestCryptEncoders to increase coverage

TODO: Execer & Queryer currently disabled https://github.com/mattn/go-sqlite3/issues/82